Number Base Converter — Free Online Tool

Convert between binary, octal, decimal, hex and base 36. Number Base Converter is a free online tool from the ToolsRift Unit Converters collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

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How to use Number Base Converter

  1. Open the Number Base Converter above — it loads instantly, no account needed.
  2. Enter or upload your input. Everything is processed locally on your device.
  3. Get your result immediately and copy or download it with one click.

Frequently asked questions

How to convert decimal to binary?

Repeatedly divide by 2 and record remainders. E.g. 10 = 1010 in binary.

What is hexadecimal?

Base 16, using digits 0–9 and letters A–F. Used in colors (#FF5733) and memory addresses.

What is octal?

Base 8, using digits 0–7. Used in Unix file permissions (chmod 755).

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